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Summary of Impact of Translating Financial Statements of Company's International Subsidiaries (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2020
Foreign Currency Translation [Line Items]
Other comprehensive Loss	$ (13,804)	$ (1,503)	$ (15,010)	$ (62,830)
Brazil
Foreign Currency Translation [Line Items]
Exchange Rate	5.43		5.43		5.20
Other comprehensive Loss			$ (3,368)	(51,453)
Chile
Foreign Currency Translation [Line Items]
Exchange Rate	811.13		811.13		714.14
Other comprehensive Loss			$ (7,967)	(5,046)
Colombia
Foreign Currency Translation [Line Items]
Exchange Rate	3,834.68		3,834.68		3,432.50
Other comprehensive Loss			$ (140)	(2,584)
Peru
Foreign Currency Translation [Line Items]
Exchange Rate	4.16		4.16		3.65
Other comprehensive Loss			$ (3,609)	(3,187)
Other foreign countries
Foreign Currency Translation [Line Items]
Other comprehensive Loss			(74)	(560)
International Subsidiaries | Cinemark Holdings, Inc. Stockholders' Equity
Foreign Currency Translation [Line Items]
Other comprehensive Loss			$ (15,010)	$ (62,830)

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